Hoist



`met; l; 1931. R c, QSGOQD. l 1,834,598

HIST

Filed Aug. 5, 1929.

. 2.5 This invention is Patented Dec. l, 1931 UNITED STATES PATENT oFFlcE ROBERT C OSGOOD, Ol' CLAR'EHONT, NEW ASSIGNOR T0 BUILIVAN HA- GEIMNERY COIPANY, A CORPORATION F HASMCHUSETTB EOM 'Application Med' August 5, 1989. Serial No. 888,590.

This invention relates to hoists, and more articularly to a hoisting mechanism providing a plurality of winding drums. A hoisting mechanism made in accordance with my invention may very advantageously be used in a so-called slusher system of handling ore.

One ob -ect of my invention is to provide an improv hoist with a lurality of winding drums. More speciiica y, the object of my to invention is to provide an improved hoisting mechanism having three or more winding drums driven from a common power shaft. These and other objects of this invention will, however, be more evident in view of the following description and claims.

In the accompanyin drawing I have shown for purposes of lustration one form which my invention may assume in practice.

The figure is a central longitudinal vertical sectional view through the illustrative embodiment of the improved hoist, a fragment of the driving motor being shown in elevation.

a development of the mechanism disclosed in my patent, No. 1,740,707, patented Dec. 24, 1929. f

In the illustrative construction shown in the drawing, a motor 2 and a pair of standards 3 and 4 are secured upon a base 1 by screws 5. A main driving shaft 6 extends between the standards 3 and 4; and is driven by an internal gear 7 which is keyed at 8 to its left end. A motor inion 9 keyed at 10 to the. motor shaft 2* mees with the gear 7 to drive the shaft 6. A gear housing 11 surrounds the aforementioned gearing and rov vides a chamber for holding a supply of lu ricant that may be drained on removal of the `plu 11.

e three drums 12, 13 and 14 are supported by the shaft 6 and are arranged in the order named from left to right on said shaft.

' A pair of ball bearings 15 are interposed be- 5 tween the shaft 6 and the drum 12, and a air of ball bearings 16 between the shaft -6 an the drum 13. A reaction member 17 is-mounted on the shaft 6 adjacent the standard 3, and includes a disc 18 to which is secured by bolts V19 an annular fiange member 20. A. hub 21 is formed integral with the disc 18, and is journaled in the standard 3 by means of roller bearings 22. Ball bearings 23 are interposed between the shaft 6 and the hub 21 to provide for relative rotation between the same.

Gear teeth 24 are formed on the inside of the flange member 20; and a drum driver pinion 25 meshes with the teeth 24. This pinion is carried on a stub shaft 26 mounted 1n the drum 12, thrust bearings 27 being provided between the shaft 26 and the pinion 25, and pinion 25 meshes both with the teeth 24 and with a pinion 47 keyed at 51 to the shaft 6. Brake mechanism 28 cooperates with a groove formed on the outside of the ange member 20; and is anchored to the base 1 by being d etachably fastened to a bracket 28 carried by the base.

The intermediate drum 13 is similarly pro vided with a stub shaft 29 on which is rotatn ably mounted a drum driver pinion 30. This v pinlon 'meshes with gear teeth 31 formed on the inside of a iiange member 32 similar to the flange member 2O and with a pinion 48 keyed at 52 to the shaft 6. A brake mecha- 75 nism 33, similar to the brake mechanism 28, cooperates with a groove formed on the outside of the flange member 32; and is anchored to the base 1 by being detachably fastened to a bracket 33 carried b the base. The ange member 32 is secure to a reaction member 34,` similar to the reaction member 18 in that it comprises a disc 35 with which is integrally formed a hub 36. Ball bearings 37 are interposed between the shaft 6 and the hub 36 to provide for relative rotation between these two members. The mechanism thus far described is, in rnciple, substantially like the mechanism isclosed in my above mentioned copending application.

The additional drum 14 is not journaled directly on the shaft 6 but is supported by roller bearings 38 on the hub 36 of the reaction member 35. Drum 14 is provided on its left outer face with an annular fiange 39 which slightly overlaps the iange member 32 so as to seal the space 40 between the drum 14 and the reaction member 35. This hinders the entrance of any grit or other material to the roller bearings 38. An additional inner 10 -ilange 54 on the drum 14 cooperates with a rabbeted corner on the hub 36 to further protect the roller bearings 38. A reaction member 41 similar to the reaction member 17 is provided to the right of the drinn 14 and is rotatably mounted in the standard 4 on roller bearings 45. .This reaction member comgrises a flange member 43 and a hub 44; and all bearings 42 are interposed between the hub 44 and the shaft 6 to support the latter. A brake mechanism 46, similar to the other brake mechanisms 28 and 33 cooperates with the groove formed on the outside of the flange member 43, and is detachably fastened to a bracket 46 carried by the base. f

Gear teeth 55 are formed on the inside of the iiange member 43; and a drum driver pinion meshes with the teeth 55. This pinion is carried on a stub shaft 56 mounted in the drum 14; and meshes both with the teeth and with a pinion 49 keyed at 53 to the shaft 6.

In view of the above detailed description of this hoisting mechanism, the operation of the same will be apparent. The, motor, whenever it is running, drives the main shaft 6 continuously. This shaft through the means of pnions 47, 48 and 49 drives the'druin driver piiiions 25, 30 and 50 respectively. Since the reaction members 1.8, 35 and 41 are rotatably mounted, there are two ssibilities. If the cooperating brake mechanism is loose, so that the reaction member is free to rotate, there will be no positive drive ofthe corresponding drum: the drum driver pinions merely act as intermediate gears, and .the driving effect is transmitted from the pinions 47, 48 and 49 to the respective reaction members. Should one or more of the brake mechanisms 28, 33 or 46 be applied, the respective drum 12, 13 or 14 will be os1tively driven; and the respective drum river pinion will roll around inside of the res ctive ange member, carrying the drum wit it,

As a result of this invention it will be noted that I have provided an improved hoisting mechanism having a plurality of drums, and

as a further advantage, it will be n oted that each drum may be 'independently driven; and furthermore that rope may be paid out independently from any of the drums, while one or more of the remainder is being driven.

' While I have in this application specifically described one form which the invention may assume in practice, it will be understood that this form of the saine is shown for purposes of illustration and that the invention may be modified and embodied in various other forms without departing from its spirit or the scope l M of the appended claims.

What I claim as new and desire to secure by Letters Patent is:

' 1. In a hoistin mechanism, spaced supports, a power sha rotatably mounted there- .5 in, a winding drum rotatably mounted on said imanes shaft',y operative driving connections ybetween f rative driv-` amem-.f

ed on said shaft and provided with a hub another winding drum rotatably mounte on said hub for rotation relative thereto, and glperative driving connections between said aft andA said latter drum. f 3. A hoisting mechanism comprising spaced supports, a power shaft rotatably mounted therein, a plurality of winding drums rotatably mounted on said shaft including an intermediate drum, operative driving connections between said intermediate drum and said shaft includinga mem-v' ber surrounding said shaft adjacent the outer end of said intermediate drum and provided with a'n outwardly rejecting hub, another of said windin ruins bein rotatably mounted on sai hub for rotation relative thereto, and operative driving connections between said shaft and said latter drum.

4. In a hoistin mechanism, spaced supi ports,apower sha trotatabl mounted therein, a wind' drum and said shaft in driving relation including a pinion on said shaft adjacent said drum `and a gear provided with a hub rotatably mounted on said shaft adjacent said rotata 1y mounted on I said shaft, re uction gearing connecting said pinion, a winding drum rotatably mounted 4 on said hub, and independent operative driving connections between said shaft and said latter drum.

5. A hoisting mechanism comprising a power shaft, means for supporting the same, winding drums rotatably mounted on said shaft, lplanetary gearing connecting said shaft in driving relation with one of said drums comprising a sun gear on said shaft, `a planet gear carried by lsaid drum and -a reaction gear provided with a hub rotatably mounted on said shaft, a winding drum rotatably mounted on said liub, for rotation relative thereto, and operative driving con- -f 125.

nections between said shaft and said latter drum.

6. A hoisting mechanism comprising spaced supports, a power'shaft rotatably mounted therein, a plurality of winding.

drums rotatably mounted on said shaft, operiis" etive tiriving connections between one of sai drums end seid shaft including a member surrounding seid shaft adjacent the outer end of seid drum end provided with an out 5 wnrdiy' proecting hub, another drum rotetn iy mounted on said hub for rotstion neietive thereto, and? separste operative driving' connections between seid shet snol seid latter drum.

l@ 7. In s hoistin mechanism, spaced supportege power sha t rotatabl mounted thereinfthree rotatably mounts Winding drums supiported by seid shaft, and .independent pinnetary drivin connections between each g1g; of seici drums en 'said shaft erich having con troi ineens permitting individuel control of "its respective drum and one of said planetary driving connections having e hub acting as a besring for another of sind drums, I

2@ 8. In e hoisting mechanism spaced sup= ports2 e power shaft rotatably mounted therein, three rotatably mounted winding drlinis supported by scifi shaft, and inde- -gpendent i lanetary driving connections bee ne tween eac of seid ruins and seid shaft each hevingcontrol means permitting individuei contrai of its respective drum, the drivin connections with one of seid drums inclu v ing s. geen ielement journsled on said shaft so nnfi providing e, bearing for smother of ssii drums, c

' 9. in e hoisting mechanism specs@ snp ports, e power shaft rotstebl mounten therein, relatively rotatable Win ng drums se supporte by sel shet, end independent poi/ver transmitting driving connections be tween seid 'shaft end said drums, the riving connections for escli drum incinding n re action member releeseble or stationery et so. will, and one of seid reaction members 1roa viding e bearing for e drum of vviiose divin connections it forms no arta n testimony whereof e x mysignetnre.,

M nonnen n @secon 

